Finding the Fourth Proportional to 91,515.36, 126,337.05 and 57,542.53
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Solution
The fourth proportional to 91,515.36, 126,337.05 and 57,542.53 is: 79,437.52
Step by Step Solution
- Step 1: Write the proportion equation
91,515.36 : 126,337.05 = 57,542.53 : x - Step 2: Convert to fraction form
91,515.36/126,337.05 = 57,542.53/x - Step 3: Cross multiply
91,515.36x = 126,337.05 × 57,542.53 - Step 4: Simplify right side
91,515.36x = 7,269,753,489.74 - Step 5: Solve for x
x = 7,269,753,489.74/91,515.36 - Step 6: Final answer
x = 79,437.52
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.